Two students ali and john live 40km apart .ali starts from his home at 7:15am and cycles towards john's home at16km\hr.john starts from his home at 7:45am and cycles at 8km/hr towards Ali's home at what time do they meet
To find out when Ali and John will meet, we need to determine how long it will take each of them to travel the distance between their homes.
Ali's speed is 16 km/hr, and he starts cycling at 7:15 am. Let's convert his starting time to minutes: 7:15 am is equivalent to 7 * 60 + 15 = 435 minutes.
He cycles towards John's home, which is 40 km away, so his travel time is 40 / 16 = 2.5 hours. We'll convert this to minutes: 2.5 * 60 = 150 minutes.
Therefore, Ali will meet John at 435 + 150 = 585 minutes.
John's speed is 8 km/hr, and he starts cycling at 7:45 am. Converting his starting time to minutes: 7:45 am is equivalent to 7 * 60 + 45 = 465 minutes.
He cycles towards Ali's home, which is 40 km away, so his travel time is 40 / 8 = 5 hours. Converting this to minutes: 5 * 60 = 300 minutes.
Therefore, John will meet Ali at 465 + 300 = 765 minutes.
To determine the time they meet, we'll convert the total number of minutes back to hours and minutes. 765 minutes is equivalent to 765 / 60 = 12 hours and 45 minutes.
Adding this to 7:00 am, the time when Ali started cycling: 7:00 am + 12:45 = 19:45, or 7:45 pm.
Therefore, Ali and John will meet at 7:45 pm.